<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>页面</title>
    <style>
        div{
          border: 1px  red;
        }
        .left{
            width: 20%;
            float: left;
        }
        .center{
            width: 59%;
            float: left;
        }
        .right{
            width: 20%;
            float: left;
        }
        .footer{
            clear: both;
            text-align: center;
            background: blue;
        }
    </style>
</head>
<body>
<!--顶部-->
<div>top</div>
<!--导航条-->
<div>导航条</div>
<!--左图片-->
<div class="left">left</div>
<!--正文-->
<div class="center">center</div>
<!--右图片-->
<div class="right">right</div>
<!--底部超链接-->
<div class="footer">footer</div>
</body>
</html>